Proceedings ArticleDOI
Approaches to the Homogenization of Periodical Metamaterials
Constantin Simovski,I. Kolmakov,Sergei A. Tretyakov +2 more
- pp 41-44
TLDR
In this paper, the authors present a review of metamaterial medium modeling with effective material parameters, including permittivity and permeability, and various possible approaches to effective medium modelling.Abstract:
Various metamaterials, very actively studied in recent years, usually consist of metal inclusions of complex shapes periodically arranged in space. If the period of the lattice and the dimensions of the inclusions are small compared with the wavelength, the material is usually considered as an effectively homogeneous medium characterized by effective material parameters (permittivity and permeability). The shape and dimensions of inclusions define the electromagnetic response, which may be rather exotic (negative material parameters, for example) and resonant response. Modelling of typical metamaterial samples with effective material parameters is a non-trivial task, where one has to face several complications as compared with the "usual" materials. These complications as well as various possible approaches to effective medium modelling will be discussed in this review presentation.read more
Citations
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Journal ArticleDOI
Homogenization of metamaterial-loaded substrates and superstrates for antennas
TL;DR: In this paper, an approach to the design of planar antennas that use metamaterial-loaded substrates based on the effective medium approximations is presented, which deals with only a few bulk medium parameters instead of a large number of parameters describing a discrete structure.
Book
Three-Dimensional Photonic Metamaterials: by Direct Laser Writing and Advanced Metallization Techniques
TL;DR: In this paper, direct laser writing in combination with chemical vapor deposition of silver was used to realize three-dimensional metamaterials for optical frequencies, which gave rise to bianisotropy resulting in a cross-coupling of the electric and magnetic fields of an incident light wave.
Journal ArticleDOI
Diffraction of electromagnetic waves by the boundary of a semi-infinite metamaterial
TL;DR: In this paper, the diffraction of plane waves at the interface of two semi-infinite regions is considered for the case when one of the regions is filled with a metamaterial in the form of a 3D periodic lattice of dipole-type particles.
Dissertation
Tunable Metamaterial Leaky Wave Antenna based on Microwave Liquid Crystal Technology
TL;DR: In this article, a continuously electrically tunable metamaterial leaky wave antenna for Ka-band applications is designed, manufactured and investigated, which features one dimensional beam steering capabilities.
References
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Book
Analytical Modeling in Applied Electromagnetics
TL;DR: In this paper, thin layers and sheets interfaces with highly conducting materials periodical structures, arrays and meshes composite materials applications in metamaterials and artificial impedance surfaces, and the performance of these materials is evaluated.
Journal ArticleDOI
Strong spatial dispersion in wire media in the very large wavelength limit
Pavel A. Belov,Ricardo Marqués,Stanislav I. Maslovski,Igor S. Nefedov,Igor S. Nefedov,Mário G. Silveirinha,Constantin Simovski,Sergei A. Tretyakov +7 more
TL;DR: In this paper, it was shown that there exist composite media that exhibit strong spatial dispersion even in the very large wavelength limit, where the description of this medium by means of a local dispersive uniaxial dielectric tensor is not complete.
Journal ArticleDOI
Impact of inherent periodic structure on effective medium description of left-handed and related metamaterials
Th. Koschny,Peter Markos,Peter Markos,Eleftherios N. Economou,David R. Smith,David R. Smith,D. C. Vier,Costas M. Soukoulis,Costas M. Soukoulis +8 more
TL;DR: In this article, the frequency dependence of the effective electromagnetic parameters of left-handed and related metamaterials of the split ring resonator and wire type was studied and a periodic effective medium model was proposed to distinguish the resonant behavior of electromagnetic parameters from effects of the periodicity of the structure.